Brush-making machine.



Patented Jan. 19, 1915.

4 SHEETS-SHEET 1.

Invent 61;

W. G. LIBBIG.

BRUSH MAKING MACHINE.

APPLIGATION FILED I'EB.9, 1912.

1, 125, 1 36., Patented Jan. 19, 1915.

4 SHEETS-SHEET 2.

Mmesses; In ve'nl'br:

W. G. LIEBIG. BRUSH MAKING MACHINE.

APPLICATION FILED FEB.9,1912.

1,125,1 36 Patented Jan.19,1915.

4 SHEETS-SHEET 3.

mssasz In ventir: 03 MM W. G. LIEBIG.

BRUSH MAKING MACHINE.

APPLICATION FILED FEB.9, 1912. 1 1 25, l 36. Patented Jan. 19, 1915.

4 SHEETS-SHEET Mmsses: 5377mm UNITED STATES rn'rnn'r OFFICE.

WILLIAM-G. LIEBIG, OF DETROIT, MICHIGAN;

BRUSH-MAKING- MACHINE.

Specification of Letters Patent. Patented J an, 19, 1915,

Application filed February 9, 1912. Serial No. 676,656.

To all whom it may concern Be it known that I, WILLIAM- G. LIEBIG,' who am-a citizen of the United'States of.

' of individual tufts whose bristle ends form the circular periphery of a brush such as is used in carpet sweepers and the like, without the necessity of manual adjustment of the tuft-holding back after each tuft-setting operation.

In the drawings :-Figure 1 is a front elevation of the related portions of the device with which my invention particularly deals. Fig. 2 is a similar elevation of the rear of the machine. Fig.3 is a perspective of the machine from a point in the rear and,

slightly to one side of the machine. Fig. 4 is a plan view of the parts of the machine located about the level of the line wm of Fig. 2, the position of the observer for this figure being at the rear of the machine. Fig. 5 is an elevation of a portion of the front of the machine showing the relation of the tuft-handling claw and the blank or back which is to receive the various tufts. Fig. 6 is a side elevation of those parts of the machine in which most of the improvements herein described are located. Figs. 7 and 8 are side and sectional plan views respectively of the reciprocating slide and pivoted hook by which the blank is turned on its axis when one row of holes is filled,

for beginning upon another row of tuftreceiving holes.

The base or frame 1 of the machine supports a bracket 2 about m'idwaybe'tween its top and bottom, its top being bent over as at 3 to support the tuft-handling mechanism hereinafter described. The top of this bracket 2 is in the form of a track, over which a table 4 travels across-the front of the machine. From each end of the table rise struts 4 through which engage holding and adjusting screws 5 and-6- for both the master roll 7 and the wooden blank 8. on one or both of these strutsare rotatably mounted a series of intermeshing' gear wheels 9, by which rotative movement of the master roll 7 is communicated to the blank 8'.

The top portion 3 of the frame supports the several parts of the tuft-handling mechamsm in such position that the wooden blank whose bored holes are to be filled lies directly beneath the tuft-handling slides. Journaled in the top of the frame is the upper power shaft 12, to the fly wheel 13 on which rotative movement is communicated by the belt 14. .This shaft carries cams 15 and '16, by which the several parts of the tuft-handling mechanism are oper- 'ated in desired sequence. Each face of each of these cams has a groove or trackway of predetermined contour, by the rotation of wh1ch the knuckled ends of various slide and lever members are reciprocated up and down to actuate not only the blank-handling mechanism here particularly described, but also the bristle-handling mechanism 17, the staple-forming mechanism 18, and the tuft-setting member 20. As the details of these parts have been fully explained in previous patents issued to me, particularly in No. 845,959 dated March 5, 1907, and

No. 8416,58?) dated March 12, 1907 they.

need now be described only in so far as they deal particularly with the other parts of the device herein disclosed to effect the particular purpose herein sought' Fulcrumed at 31 to the upper portion 3 of the frame is a lever member 30 whose upper end is bent over to carry a roller 32 which engages in' one of the cam trackways on the member 15, which as it to tates actuates the lever to and fro, as shown in full and dotted lines in Fig. 6'. This in turn rocks the lower arm 33 of thele'ver, to the lower end of which is pivoted or hinged the rear end of. the reciprocatory slide 37, which is'movably supported by theupper end of the link 37, whose lower end is pivotally supported by the frame. -This slide piece 37 is partly cut away on one side, as shown particularly in Figs. 7 and 8, to receive the pivoted piece 36, which is yieldingly'held in parallel relation with the slide piece 37 by means of the leaf spring 37; r Pivoted in the forward end of-th'e piece 36 is a hook member 38, which reaches over the master roll 7 so that its lower hooked end engages over some one of the studs or pins 35 on the master roll, and as the lever 30" and the related parts just described are actuated, each time that a rearward movement of the slide 3;? takes place, the hook draws upon that one of the studs over which it then engages, and actuates the master roll 7 rotatively, the degree of the throw thus given depending on the number and equidistant spacing of the studs in any particular circle, or girdle of pins or studs 35; thus if there be eight studs, each actuation of the master roll 7 will be through a fortyfive degree angle. The rotative actuation thus given the master roll is in turn communicated to the blank 8 through the medium of the gear wheels 9, "the number of holes in the blank being the same as the number of pins in any particular girdle.

or series on the master roll 7. \Vhile these repeated rotative actuations of the blank 8 are going on to present the several holes in the blank 8 to the action of the tuft-setting mechanism, a branch 33* of thelower arm 33 of the lever is also actuated, thus imparting a reciprocatory movement to the link 40, whose lower pointed end rests upon and successively engages, at each cycle of operations, one of the ratchet teeth 29 on the cam Wheel 24, which is rotatably sup ported on the short shaft 21, which is fixed in the frame of themachine at about the level of the table 4. .When, through the repeated actuation of this wheel 24 by the link 40, its rotation through almost a complete circle has been completed, the wing piece or projection 25 thereon engages againstthe head 26 on the swinging lever 27, and forces its forward end to the'right, as viewed from the front of the machine. This forward end carries an adjustable piece 41, yieldingly held in projected position by the spring 41, which engages in the serrated rear edge 42 of the traveling table, forcing it also to the right. As soon as it has done this, the lever 27 returns to its normal position, being actuated by a spring 28, one end of which is anchored to the tray 43 or by other similar and equivalent means. The reciprocatory movement of the tuft-setting slide 20, carrying on its lower end the tuft-seizing claw .44, then continues, successively filling the several holes in the next girdle of borings in the periphery of the blank 8, and when it is completed the table 4 is again actuated toward the right until the next circle of holes on the face of the blank 8 is in line for filling from the claw 44.

-When the last hole in the last circle of holes on the blank 8 has been filled, the table 4 and its supported parts have been moved so far to the right that the right end of the table 4 engages the bent over end 48 of the ivoted lever 49 whose heel portion 50, which may be slightly beveled, has thus far engaged over the upper end of the vertical stop rod 51; this displaces mamas the lever 49 to the position shown in dotted lines in Fig. 4, thus allowing the rod 51 to rise under the pull of the spring 52. This rod being connected with the clutch-control rod 53through the treadle 54, actuates the clutch lever 55 so as to throw out the clutch 59 by which the fly wheel 13 is operatively connected with the'shaft 12, thus stopping the machine and bringing to the attention of the operator the fact that the block has been fully tufted, and that the insertion of a new one is necessary. When this is done, the traveling table 4 is again moved to the extreme left of its path of travel, the operator presses with his foot on the treadle 54, starting the machine once more, and manually moving the lever 49 to its position wherein the heel 50 engages over the top of the rod 51. The bracket 58 atthe left side of the machine limits the possible movement of the table after a blank has been filled and the machine has been stopped and before the filling of another blank is begun, to the extent necessary to locate the first row or girdle of holes to be filled just under the tuft-handling claw 44.

The adjustable bracket 36 at the Iront of the table 4 engages under the blank 8, just clearing the periphery thereof in a way to support it against bending or'breaking under the impact of the tuft-setting mechanism.

The arrangement of the piece 36in the reciprocatory slide 37, and its yielding retention in place by the leaf spring 37 is for the purpose of providing for slight swinging strain on the hook 38 and the member which supports it at the time that the table 4 is actuated lengthwise of the rollers by the action of the lever 2'] already described, since the hook 38 at that time is in engage ment, just after the completion of its last rotative actuation of the master roll 7, with one of the-pins or studs 35 thereon. And in order to prevent the hook from swinging too far up or possibly slipping from its engaging position over some one of the studs 35 as it rotates the master roll 7, the leaf spring 38* may be provided, to yieldingly hold the hook down over the then upper surface of the master roll.

It is evident that numerous departures from the exact mechanism here illustrated and described could be indulged in without erative relation to said master roll, means for causing rotative movement of said master roll and thereby of said blank, means carried by said frame for inserting tufts of bristles in successive holes in the blank, and means operatively related to the several parts whereby they are actuated synchro-' nously and successively, substantially as described. Y

2. In a brush making machine, the combination of a reciprocatory tuft-setting member, a longitudinally movable table provided with means for rotatably supporting a previously bored blank in receiving position with respect to said tuft-setting member, a master roll rotatably mounted on said table and operatively connected with said blank-supporting portion thereof, means for periodically actuating said master roll and. thereby said blank rotatively, means adapted to be rendered active by the movement of said last named actuating means whereby said table and its supported parts are actuated longitudinally at desired intervals, and means actuated from the same source of power and said blank-actuating means, whereby the tuft-setting member is synchronously actuated with respect to said blank and to the several borings therein,

substantially as described.

v 3. In a brush making machine,- in combination with a tuft-setting mechanism, a

traveling table member provided with means for rotatably supporting a blank in position to be engaged by the tuft-setting mechanism, a master roll operatively related to said blank-supporting means, whereby, when it is rotatably actuated, the blank is caused to turn through an arc of predetermined size, normally inactive means adapted to be rendered operative by the completion by the master roll and the blank of a certain number of rotative movements, whereby the table and its supported parts are moved. lengthwise, a common power shaft, and a plurality of power transmitting members operatively connected with said power shaft and with theseveral enumerated parts, whereby each is operated in desired sequence with respect to the others, substantially as described.

4. In a brush making machine, in combination with common actuating means, tuft-settin mechanism adapted to be actuated there y in desired sequence, a longitudinally movable table provided with means for rotatably'supporting a blank in receiving position with respect to said tuftsetting'mechanism, a master roll rotatably' mounted on said table .and operatively connected' with the blank-supporting portion thereof, means operatively connected with said common actuating means for periodically actuating said master roll and thereby the blank rotatively, and means connected with said common actuating means whereby .the table and its supported parts are moved longitudinally at desired intervals synchronously with the movement of the other parts, substantially as described.

5. In a brush making machine, in combination with reciprocatory tuft-setting mechrotatably supporting a blank and with a rotatable master roll operatively connected with said blank-supporting means, a reciprocatory tuft-setting member, and common actuating means operatively connected with the several parts whereby @the master roll and thereby the blank are rotated after each operation of the tuft-setting member, and whereby said table and its supported parts are moved longitudinally aftera predetermined number of rotative movements of the master roll and of the blank have been completed, substantially as described.

7. In a brush making machine, in combination with a traveling table provided with a rotatably supported master, roll and means for rotatively supporting a blank in operative engagement therewith, a master-rollrotating member adapted to engage said master roll at predetermined time intervals to accomplish its rotation tothe degree required, a tuft-setting mechanism, means rendered active by-the completion of a certain number of actuations of the blank 7 whereby the table is moved lengthwise of the axis of the blank, and means for automatically stopping the machine when the table has reached the end of its possible path of travel.

In testimon whereof I afiix in presence 0 two witnesses.

WILLIAM G. LIEBIG. Witnesses:

WILLIAM M. SWAN, JnrrnRsoN G. Tmmnnn.

my signature 

